我正在尝试将 std::thread
与 G++ 一起使用.这是我的测试代码
Hi I am trying to use std::thread
with G++. Here is my test code
#include <thread>
#include <iostream>
int main(int, char **){
std::thread tt([](){ std::cout<<"Thread!"<<std::endl; });
tt.join();
}
它可以编译,但是当我尝试运行它时,结果是:
It compiles, but when I try to run it the result is:
terminate called after throwing an instance of 'std::system_error'
what(): Operation not permitted
Aborted
我的编译器版本:
$ g++ --version
g++ (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
我的测试代码有什么问题?
What is wrong with my test code?
更新:我使用以下命令行来编译和运行我的代码.
UPDATE: I use the following command line to compile and run my code.
$ g++ -std=c++0x test.cpp
$ ./a.out
我试过了
$ g++ -std=c++0x -lpthread test.cpp
$ ./a.out
还是一样.
我觉得在Linux上pthread是用来实现std::thread
的,所以需要指定-pthread
代码>编译器选项.
I think on Linux pthread is used to implement std::thread
so you need to specify the -pthread
compiler option.
因为这是一个链接选项,所以这个编译器选项需要在源文件之后:
As this is a linking option, this compiler option need to be AFTER the source files:
$ g++ -std=c++0x test.cpp -pthread
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